| A | B |
| Missouri Compromise | a law passed by Congress in 1820 that created an imaginary line between territories in the West where slavery would not be allowed. |
| Compromise of 1850 | Laws passed by Congress providing that California would enter the Union as a free state: that people living in other territories would be allowed to decide whether or not they wanted slavery: and that everyone would have to obey the Fugitive Slave Law |
| Uncle Tom’s Cabin | Uncle Tom’s Cabin- An 1852 novel by Harriet Beecher Stowe that attacked slavery. |
| Kansas-Nebraska Act | A law passed by Congress in 1854 that allowed the people who settled in Kansas and Nebraska to decide for themselves whether they would allow slavery in their territories |
| Dred Scott Decision | Supreme Court decision of 1857 that said the slavery was legal in any part of the U.S. |
| secession | Breaking away from the Union. |
| Confederate States of America | The country formed by the Southern states during the American Civil War |
| Harriet Beecher Stowe | Author of Uncle Tom’s Cabin. |
| Abraham Lincoln | President of the U.S. during the Civil War |
| John Brown | Abolitionist who led a raid on Harpers Ferry, Virginia, in 1895 |
| Jefferson Davis | President of the Confederacy during the Civil War |